FIGURE 4. Overlap of species content in the 6 repositories used. For instance, 749 species (top right) have only photos in the Reptile Database while 635 species (bottom right) have photos both in the Reptile Database and iNaturalist, but not in any other repository. 295 species (middle right) have photos in the Reptile Database, iNaturalist, and Flickr, and so on. Numbers>99 are printed in larger font to emphasize their disproportional contribution.